Study on the Adsorption Properties for Metal Ions of ChitosanModified by 3Allyl Benzo15Crown5 and4Allyl Benzo 15Crown5
端烯丙基苯并15-冠-5接枝壳聚糖对金属离子的吸附性能

Four novel chitosancrown ethers(3XCTS,4XCTS,3XCCTS and 4XCCTS)were synthesized by the reaction of 3propenyl benzo 15crown5 and 4propenyl benzo 15crown5 with chitosan or crosslinked chitosanThe static adsorption properties of them for metal ions(Pd2+,Cu2+and Hg2+)were studiedThe results showed the adsorbents had good adsorption characterization and good adsorption selectivity for Pd2+ when Cu2+ and Hg2+ were in coexistence